Results 51 to 60 of about 787,654 (231)

KLK7 overexpression promotes an aggressive phenotype and facilitates peritoneal dissemination in colorectal cancer cells

FEBS Open Bio, EarlyView.
KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani, Tobias Dreyer, Meriem Naim, Rea Lo Dico, Natalia A. Ignatenko, Viktor Magdolen, Dalila Darmoul   +6 more
wiley   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Distributed Bipartite Output Formation Control for Heterogeneous Discrete-Time Linear Multi-Agent Systems

IEEE Access
This paper studies the distributed bipartite output formation control problem of heterogeneous discrete-time linear multi-agent systems (MASs) via cooperative output regulation theory. To construct the bipartite formation, under the structurally-balanced
Jie Zhang, Yao Yao, Jian-An Wang, Zhiqiang Li, Penghui Feng, Wulin Bai   +5 more
doaj   +1 more source

Formation Trajectory Tracking of Discrete-Time Distributed Multi-AUVs with Nonconvex Control Inputs and Weak Communication

Journal of Marine Science and Engineering, 2023
This paper considers the formation trajectory tracking problem of discrete-time distributed multi-AUVs (multiple autonomous underwater vehicles) with control input in a nonconvex set and weak communication.
Lidong Yue, Zheping Yan, Jiajia Zhou, Mingyao Zhang   +3 more
doaj   +1 more source

A Characterization of Discrete Time Soliton Equations

, 2001
We propose a method to characterize discrete time evolution equations, which generalize discrete time soliton equations, including the $q$-difference Painlev\'e IV equations discussed recently by Kajiwara, Noumi and Yamada.Comment: 13 ...
Conte R., Freeman N. C., Grammaticos B., Hietarinta J., Hirota R., Hirota R., Hirota R., Hirota R., Jimbo M., Joshi N., Kupershmidt B., Narita Y., Nijhoff F., Ohta Y., Quispel G.   +14 more
core   +1 more source

Microglial dynamics and ferroptosis induction in human iPSC‐derived neuron–astrocyte–microglia tri‐cultures

FEBS Open Bio, EarlyView.
A tri‐culture of iPSC‐derived neurons, astrocytes, and microglia treated with ferroptosis inducers as an Induced ferroptosis model was characterized by scRNA‐seq, cell survival, and cytokine release assays. This analysis revealed diverse microglial transcriptomic changes, indicating that the system captures key aspects of the complex cellular ...
Hongmei Lisa Li, Hiroko Ohmiya, Sou Sakamoto, Masato Yugami, Akiko Oki, Makoto Furusawa, Yan Ling   +6 more
wiley   +1 more source

Stability of convex linear combinations of continuous-time and discrete-time linear systems [PDF]

Archives of Control Sciences
The asymptotic stability of the convex linear combination of continuous-time and discretetime linear systems is considered. Using the Gershgorin theorem it is shown that the convex linear combination of the linear asymptotically stable continuous-time ...
Tadeusz Kaczorek
doaj   +1 more source

Synchronization of Discrete-Time Fractional-Order Complex-Valued Neural Networks with Distributed Delays

Fractal and Fractional, 2023
This research investigates the synchronization of distributed delayed discrete-time fractional-order complex-valued neural networks. The necessary conditions have been established for the stability of the proposed networks using the theory of discrete ...
R. Perumal, M. Hymavathi, M. Syed Ali, Batul A. A. Mahmoud, Waleed M. Osman, Tarek F. Ibrahim   +5 more
doaj   +1 more source

Dynamical complexity of discrete time regulatory networks

, 2005
Genetic regulatory networks are usually modeled by systems of coupled differential equations and by finite state models, better known as logical networks, are also used.
Aguirre C Martin J Vilela Mendes R, Coutinho R, Coutinho R Fernandez B Lima R Meyroneinc A, Edgardo Ugalde, Gambaudo J-M, Ricardo Lima   +5 more
core   +1 more source

Compact phase space, cosmological constant, discrete time [PDF]

, 2015
We study the quantization of geometry in the presence of a cosmological constant, using a discretiza- tion with constant-curvature simplices. Phase space turns out to be compact and the Hilbert space finite dimensional for each link.
Rovelli, Carlo, Vidotto, Francesca
core   +4 more sources